Scorpio Z fuels

[davereid]

Use 91.

That engine has a 9:1 compression ratio I think, so 95 or 98 is just wasting money and no, higher octane fuel will not give you any more power.

I just googled it and its 9.5:1, so its a very modest compression ratio.

As you suggest its safe as houses on 91 if correctly timed.

[AllanB]

I loved the lead fuels - you could tellhow well your engine was tuned by the colour of the muffler outlet!



95-96 - absolutely nothing in it - your dealer must be a old bugger!

I'd say it was actually designed for 91. Is there a owners book under the seat or a label on the fuel cap/tank?

[bosslady]

lol so glad I didn't ask this question and I still can't figure out how to put the cap back on... this is taking me back to when I was learning to drive and I was freaking out cause I didn't know what fuel to put in and I couldn't work the machine lol

[kiwifruit]

Dealer is full of shit, use 91. Replace the nylon "tyres", too.

[EJK]

Put diesel. They are cheaper.

[Flip]

Nodrog could have answered the question in less word than he spent slinging shit.

A far better thing to do would have been to do nothing instead of kicking the newbie.

Higher octane fuels usually contain more energy, and burn faster, so they help your engine run well.

......

I agree with the first two lines, but the third is completely wrong.

All the fuels have almost exactly the same calorific valve and high octane fuels burn slower.

High octane fuels are for high compression motors. Engineers call this volumetric efficiency. The more you can compress a fuel before it is ignighted the harder the burning mixture can push the pistons down and/or the more fuel and air you can cram into the smallest space possible results in higher combustion chamber pressure. Octane is only the fuels ability not to preignite under compression, which is a very bad thing unless you are a diesel motor.


91 should be fine in your bike, you can try 95 or 98 but I doubt you will see any advantage.

[Old Steve]

my reply was more to do with how he didnt know where to buy petrol from.

NO!!! His question was where did he get 96 octane petrol - Premium is now 95 octane so the dealer hasn't caught up with fuel specifications sinve they changed in the 1990s with the introduction of unleaded petrol.

I was a member of the fuel industry committee tasked by the MOE to develop specifications for ULP. 95 Premium ULP was introduced to fall in line with overseas standards so that obtaining imported fuel would be easier - I recall that it had quite a high satisfaction rating for the fleet at that time, importation of Japanese turbocharged specials has altered that somewhat.

[Sable]

95-98 is a waste, go 91. Your motor is too shit to make use of the higher octane rating so you'll be pissing money away. Also,
Reeeeeeeeeeeetaaaaaaaaaaaaaaaaaaaard

[Tigadee]

I had a Scorpio [feels like such a long time ago now!] and it ran perfectly fine on 91.

[slofox]

Your dealer simply made a mistake. We USED to have 96 octane a couple of eons ago. For reason I don't know, it was dropped to 95. I am sure he meant 95 octane. As suggested, he's probably an old bugger (like me...).

If I had a Scorpio, I'd probably use 91 as well.